PAE у W2k/XP
Вось карысна ўсё ж чытаць докі, яны рулез
To boot the system and utilize PAE memory, the /PAE switch must be added to the corresponding entry in the Boot.ini file. If a problem should arise, Safe Mode may be used, which causes the system to boot using the normal kernel (support for only 4 GB of RAM) even if the /PAE switch is part of the Boot.ini file.
http://msdn.microsoft.com/en-us/library/windows/hardware/gg487503.aspx
To boot the system and utilize PAE memory, the /PAE switch must be added to the corresponding entry in the Boot.ini file. If a problem should arise, Safe Mode may be used, which causes the system to boot using the normal kernel (support for only 4 GB of RAM) even if the /PAE switch is part of the Boot.ini file.
http://msdn.microsoft.com/en-us/library/windows/hardware/gg487503.aspx